ceph/src/boost/boost/geometry/srs/projections/proj/lask.hpp

   1 // Boost.Geometry - gis-projections (based on PROJ4)
   2
   3 // Copyright (c) 2008-2015 Barend Gehrels, Amsterdam, the Netherlands.
   4
   5 // This file was modified by Oracle on 2017, 2018, 2019.
   6 // Modifications copyright (c) 2017-2019, Oracle and/or its affiliates.
   7 // Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle.
   8
   9 // Use, modification and distribution is subject to the Boost Software License,
  10 // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
  11 // http://www.boost.org/LICENSE_1_0.txt)
  12
  13 // This file is converted from PROJ4, http://trac.osgeo.org/proj
  14 // PROJ4 is originally written by Gerald Evenden (then of the USGS)
  15 // PROJ4 is maintained by Frank Warmerdam
  16 // PROJ4 is converted to Boost.Geometry by Barend Gehrels
  17
  18 // Last updated version of proj: 5.0.0
  19
  20 // Original copyright notice:
  21
  22 // Permission is hereby granted, free of charge, to any person obtaining a
  23 // copy of this software and associated documentation files (the "Software"),
  24 // to deal in the Software without restriction, including without limitation
  25 // the rights to use, copy, modify, merge, publish, distribute, sublicense,
  26 // and/or sell copies of the Software, and to permit persons to whom the
  27 // Software is furnished to do so, subject to the following conditions:
  28
  29 // The above copyright notice and this permission notice shall be included
  30 // in all copies or substantial portions of the Software.
  31
  32 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  33 // OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  34 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  35 // THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  36 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  37 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  38 // DEALINGS IN THE SOFTWARE.
  39
  40 #ifndef BOOST_GEOMETRY_PROJECTIONS_LASK_HPP
  41 #define BOOST_GEOMETRY_PROJECTIONS_LASK_HPP
  42
  43 #include <boost/geometry/srs/projections/impl/base_static.hpp>
  44 #include <boost/geometry/srs/projections/impl/base_dynamic.hpp>
  45 #include <boost/geometry/srs/projections/impl/projects.hpp>
  46 #include <boost/geometry/srs/projections/impl/factory_entry.hpp>
  47
  48 namespace boost { namespace geometry
  49 {
  50
  51 namespace projections
  52 {
  53     #ifndef DOXYGEN_NO_DETAIL
  54     namespace detail { namespace lask
  55     {
  56
  57             static const double a10 = 0.975534;
  58             static const double a12 = -0.119161;
  59             static const double a32 = -0.0143059;
  60             static const double a14 = -0.0547009;
  61             static const double b01 = 1.00384;
  62             static const double b21 = 0.0802894;
  63             static const double b03 = 0.0998909;
  64             static const double b41 = 0.000199025;
  65             static const double b23 = -0.0285500;
  66             static const double b05 = -0.0491032;
  67
  68             template <typename T, typename Parameters>
  69             struct base_lask_spheroid
  70             {
  71                 // FORWARD(s_forward)  sphere
  72                 // Project coordinates from geographic (lon, lat) to cartesian (x, y)
  73                 inline void fwd(Parameters const& , T const& lp_lon, T const& lp_lat, T& xy_x, T& xy_y) const
  74                 {
  75                     T l2, p2;
  76
  77                     l2 = lp_lon * lp_lon;
  78                     p2 = lp_lat * lp_lat;
  79                     xy_x = lp_lon * (a10 + p2 * (a12 + l2 * a32 + p2 * a14));
  80                     xy_y = lp_lat * (b01 + l2 * (b21 + p2 * b23 + l2 * b41) +
  81                                p2 * (b03 + p2 * b05));
  82                 }
  83
  84                 static inline std::string get_name()
  85                 {
  86                     return "lask_spheroid";
  87                 }
  88
  89             };
  90
  91             // Laskowski
  92             template <typename Parameters>
  93             inline void setup_lask(Parameters& par)
  94             {
  95                 par.es = 0.;
  96             }
  97
  98     }} // namespace detail::lask
  99     #endif // doxygen
 100
 101     /*!
 102         \brief Laskowski projection
 103         \ingroup projections
 104         \tparam Geographic latlong point type
 105         \tparam Cartesian xy point type
 106         \tparam Parameters parameter type
 107         \par Projection characteristics
 108          - Miscellaneous
 109          - Spheroid
 110          - no inverse
 111         \par Example
 112         \image html ex_lask.gif
 113     */
 114     template <typename T, typename Parameters>
 115     struct lask_spheroid : public detail::lask::base_lask_spheroid<T, Parameters>
 116     {
 117         template <typename Params>
 118         inline lask_spheroid(Params const& , Parameters & par)
 119         {
 120             detail::lask::setup_lask(par);
 121         }
 122     };
 123
 124     #ifndef DOXYGEN_NO_DETAIL
 125     namespace detail
 126     {
 127
 128         // Static projection
 129         BOOST_GEOMETRY_PROJECTIONS_DETAIL_STATIC_PROJECTION_F(srs::spar::proj_lask, lask_spheroid)
 130
 131         // Factory entry(s)
 132         BOOST_GEOMETRY_PROJECTIONS_DETAIL_FACTORY_ENTRY_F(lask_entry, lask_spheroid)
 133
 134         BOOST_GEOMETRY_PROJECTIONS_DETAIL_FACTORY_INIT_BEGIN(lask_init)
 135         {
 136             BOOST_GEOMETRY_PROJECTIONS_DETAIL_FACTORY_INIT_ENTRY(lask, lask_entry);
 137         }
 138
 139     } // namespace detail
 140     #endif // doxygen
 141
 142 } // namespace projections
 143
 144 }} // namespace boost::geometry
 145
 146 #endif // BOOST_GEOMETRY_PROJECTIONS_LASK_HPP
 147